688333-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 688333-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,8,3,3 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 688333-68:
(8*6)+(7*8)+(6*8)+(5*3)+(4*3)+(3*3)+(2*6)+(1*8)=208
208 % 10 = 8
So 688333-68-8 is a valid CAS Registry Number.